MX119 Discrete Codes

[deafbykhorns]

I'm having trouble programming a macro (activity) to switch my MX-119 to external. My remote only has a mode button which does this switching and there are several delays between switching which makes it difficult to time. A discrete code would be ideal. This is also going to be a challenge since I'm using a Harmony One which doesnt allow custom input codes. So I'll have to borrow a universal and then use the "learning" feature on the Harmony.